Sanding device



P. W. MILES. SANDING DEVICE.

APPLICATION HLED FEB. 26, 1920.

2 SHEETSSHEET 2 2 30 A 33 l I @F 7 225 10 MT i ig Swumdm;

Patented May 18, 1920.

UNITED STATES P TENT OFFICE.

PERCIVAL w. MILES, or WILKES-BARBIE, PENNSYLVANIA.

saNniNe DEVICE.

for use on traction vehicles, such as street cars and railway cars.

An object of this invention is to provide novel means whereby sand is kept free of moisture and prevented from .becoming cloggedin the apparatus due to moisture or freezing, the said invention furthermore contemplating the provision of novel means whereby the sanding attachment may be ap plied to the floor of a car or under the vestibule of a car, while at the same time preventing the access of moisture to the sand.

. A further object of this invention is to produce a sanding apparatus having the usual sand blowing feature, while at the same time it has a hand operated gate or valve which can be actuated, if for any reason the sanding apparatus is deprived of air to blow the sand, thus making it practical for use when the air producing apparatus of a train is impaired.

A further object of this invention is to produce a sand blowing apparatus having an air space which prevents moisture from reaching the sand by'capillary attraction.

lVith the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts tobe hereinafter more fuly set forth and claimed.

In describing the invention in detail,-reference will be had to the accompanying drawings forming part of this specification,

wherein like characters denote corresponding parts in the several views, and in which n Figure 1 illustrates a vertical sectional view of a sanding device embodying the invention;

Fig. 2 illustrates a sectional view of the device on a line corresponding with the line 22 of Fig. 1;

Fig. 3 illustrates a sectional view of the device ona line corresponding with the line 3-3 of Fig. 1;

Specification of Letters Patent. Patented. BIay 18, 1920, Application filed. February 26, 1920. Serial No. 361,417. r

Fig. l illustrates a perspective view of a valve;

Fig. 5 illustrates a top plan view of the sand distributing device, and

. Fig. 6 illustrates a sectional view embodying" a modification.

\ In these drawings, 10 denotes a casing with a flange 11, adapted to fit against the under surface of the floor of a car, and said flange may be provided with apertures 12 through which fastenings may be extended to anchor the casing to the floor. The'casing is preferably'square, although it may be rectangular in cross section and its bottom is inclined toward the center and terminates in-a spout 12, to which a hose or other pipe may be secured for directing sand to the track. Y

. One wall of the casing has an aperture 13 therein for the reception of the air pipe 14, whereas the opposite wall has an aperture 15 to receive the shank 16 of the valve or gate 17 which is hand operated for the purpose of permitting the escape of sand from the sand box if the sand blower is not in operation. 7

The shank 16 has a coupling 18. with a bifurcated end 19 to which a link20 is connected by the pivot 21 and the opposite end of the said link extends to a lever 22 ,or

other means for reciprocating the gate. The

gate or valve is held normally closed in the present embodiment of the invention by a spring 23 which has one end anchored to a permanent part of the car andthe other'end connected to the said lever, so that oscillation of the leverwill result in opening or with an opening for the escape of sand.

-The hollow member 24 has a flange 25 around its edge at the top and this flange has it edge lying ina seat 26 formed in the top. of the casing.

The hollow member 24 has an upstanding flange 27 and there are upstanding flanges 28 at the outer edges of the flange 25 and there is a space between the flanges 27 and 28 for the circulation of air. The sand box 29, such as is usually employed in street railway cars, has its discharge end projecting that sand from the sand box will find its way into the interior of the hollow member 24;.

The interior of the hollow I member is divided transversely by a partition 30 which partition is of a depth equal practically to the depth of the unrestricted portion of the said hollow member, although the proportions in this respect need not be strictly held. ()n one side of the partition 30 there is a floor or horizontally disposed partition 31 which however, does not fill the space within the compartment, but there is an opening 82 at the end of the said partition 31 iorthe escape of sand. The space above the partition'31 is provided with an inclined floor 33, which terminates at a point over the first mentioned partition 31, so as to direct sand into the compartment toward that end of the partition 81 which is uninterrupted. The air pipe'heretofore mentioned projects through a wall of the hollow member 24 and terminates just above the partition 31 where the sand gravitates from the floor 33 and when air is delivered through the said pipe with sufiicient force, it blows the sand through the opening at the end of the partition 31 and the said sand finds its way through the opening in the bottom of the hollow member and is discharged into the a casing and through the exhaust pipe thereof.

The compartment on the opposite side of the partition 30 has an inclinedbottom 3 1 which terminates short of one wall of the compartment to form a space for the passage of sand. Under the lower end of the inclined bottom, there are guides 85 one of which is attached to the inner wall of the hollow member and the other of which is attached to the partition 30 and these guiding members support the gate orvalve which opens or closes the opening for controlling the, sand. This is the hand'operative valve or gate which is utilized when the sand blowin apparatus is inactive and can be manipulated as heretofore stated for permitting the escape of sand to the track. The gate or valve has an opening 36 to permit the escape of any sand which might work its way between the end of the inclined bottom 34. and the said gate during its reciprocation. l

On the inside of the compartment which is guarded by the gate is a beveled fillet comprising a series of strips 37 which may be secured to the inner walls of the said com partment, the said strips as stated having beveled upper surfaces which prevent lodgment of sand in the said compartment.

As stated, the device as so far described, is intended to be employed in connection with the floors of cars where the sand box is underthe seats or otherwise located inside a of the cars. into the space formed by the flanges 27 so When the apparatus is to be used in conjunction with sand boxes which are under the vestibules of cars, the sand box is preferably. guarded by a housing A which is practically of the same contour as the sand box, but is larger than said sand boxand the said housing may be secured to the under surface of the vestibule and extend downwardly. hen this form of apparatus is employed, the sand blower forming the subj ect of this invention as. heretofore described, is attached to the casing or housing A in the manner shown, whereas the discharge opening of the sand box is disposed so that it discharges into the hopper of the apparatus and hence it would discharge or extend within the space bounded by the flanges 27 of this apparatus.

I claim: J

1. In a sand blower, a casing having means of attachment to a car floor a hollow member suspended within the said casing, the said hollow member having compartments for the reception of sand, a valve for controlling one of said compartments, means for actuating the said valve, 'a floor extending part way across theother compartment,

an inclined floor extending over the opening of the interrupted lower floor, an air delivery pipe extending into the last mentioned compartment in the space above the first mentioned floor and below the space'at the end of the inclined floor.

2. In a sanding device for cars, a casing having means for delivering sand to a track, a hollow member suspended in said casing and spaced therefrom, a flange on the hollow member adapted to be secured to the under side of a floor of a car, a flange on the hollow member extending through the floor, compartments within the hollow member to which sand is delivered from the sand box of a car, and means for efiecting the discharge of sand from the sand box to the hollow member.

3; In a sanding device for cars, a casing having means fordelivering sand to a track, a hollow member suspended in said casing and spaced therefrom, a flange on the hollow member adapted to besecured to the under sideof a floor of a car, a flange on the hollow member extending through the floor, compartments within the hollow member to which sand is delivered from the sand box ofa car, meansfor effecting the discharge of sand from the sand box to the hollow member, a partition dividing, the hollow member into compartments, an inclined floor in one compartment terminatingshort of the wall of the compartment'to form an first mentioned floor of said compartment,

and an air supplying pipe extending 10 through the wall of the hollow member and terminating above the said horizontal partition and under the space at the end of the inclined floor.

PERGIVAL W. MILES. 

